Hedging rule-based optimized reservoir operation using metaheuristic algorithms

In this study, optimal operation of a reservoir by incorporation the hedging policy and Bat Algorithm (BA) is investigated. The deficit in water supply dam minimized as objective function monthly releases from are determined compared three hedging-based rules. first rule, which has single decision variable, constant release considered for all 240 months period. second scenario, one fixed each month year repeated successive operating years results 12 variables problem. third varied resulting unknowns developed models utilized Zhaveh west Iran. Results show that while BA suitable algorithm to be applied planning, amount lower when higher degree freedom defined